A tempo run is a 20-30 minute run at a “comfortably hard” pace. It aids in improving lactate threshold and aerobic efficiency.
The tempo is between the speed you can run and the speed for a 10K run—something you’re able to sustain for an hour. Distance runners benefit from tempo runs because they train the body to travel quicker for longer. They are physically demanding and mentally demanding as well, but they condition your stamina and speed for racing.